Bridge Type
Main Span(s): Masonry [8] Arch - Deck [11]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]
Bridge Dimensions
Length: 29 m = 95.1 ft
Main Spans: 2 at 12.2 m = 40.0 ft
Approach Spans: 0
Skew: 20
Width, Roadway: 6.1 m = 20.0 ft (2 Lanes) and Out-To-Out: 7.3 m = 24.0 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Napa County [055], California [06]
Owned by County Highway Agency [02], DOT District: 4
1 MI E RT 29 WHEELER STA
Condition
Deck: Not Applicable [N]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design:
Operating: 27.2 metric ton = 29.9 tons ()
Inventory: 16.2 metric ton = 17.8 tons ()
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: May 1999 [599] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1 km = 0.6 mi
Traffic
ADT: 2600 (2005) and Trucks: 10%
Future ADT: 3979 (In 2037
)
